randombytes

Description

librandombytes is a public-domain library providing a simple API for applications generating fresh randomness: include <randombytes.h>, call randombytes(x, xbytes) whenever desired to generate fresh random bytes x[0], x[1], ..., x[xbytes-1], and link with -lrandombytes.

Random bytes are often used directly in applications. Random bytes are also the foundation of more complicated random objects, such as random integers in a limited interval, random floating-point numbers from a (nearly) normal distribution, and random keys used in public-key cryptosystems. librandombytes is dedicated to obtaining fresh random bytes in the first place, and leaves it to higher-level libraries to convert those bytes into other types of random objects.

librandombytes aims for the following stringent randomness goal: no feasible computation will ever be able to tell the difference between the output bytes and true randomness (independent uniformly distributed random bytes). This makes the randombytes() output suitable for use in applications ranging from simulations to cryptography.

Command line tool "randombytes-info".

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Homepage

https://randombytes.cr.yp.to/

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